Funding for this research was provided by:
Zhejiang Province Public Welfare Technology Application Research Project (LGF18H040008, LGF19H040005)
Health Development Planning Commission of Zhejiang Province (2019KY221, 2017KY654)
Technology Bureau of Jiaxing, Zhejiang Province (2018AY32022)
Research Fund for Academician Lin He New Medicine (19331201, 19331202)
Received: 11 February 2020
Accepted: 24 June 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: All patient-related data were collected retrospectively and anonymously. Thestudy was approved by Jiaxing Maternity and Child Health Care Hospital Affiliated to Jiaxing University’s Ethics Committee.
: Not applicable.
: The authors have no conflicts of interest relevant to this article.